Odyssey Marine Exploration Inc (OMEX) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, the three largest insider holders of OMEX are Gallardo Juan Antonio Carlos Cortina (TenPercentOwner, 3.93Mn shares), Mark B Justh (Director, 859.21K shares), Mark Gordon (Chief Executive Officer, 482.24K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Gallardo Juan Antonio Carlos Cortina 0 3,931,466 13 Aug, 2025
Mark B Justh 859,207 0 03 Jul, 2025
Mark Gordon Chief Executive Officer 482,235 0 20 Oct, 2025
John D Jr Longley President Coo 150,313 0 15 Oct, 2025
Todd E Siegel 114,902 0 09 Feb, 2026
Jay Nudi Pao/Treasurer 97,826 0 02 May, 2022
Jon D Sawyer 79,580 0 08 Dec, 2025
Laura Lionetti Barton Chief Business Officer 77,755 0 17 Mar, 2022
James S Pignatelli 64,348 0 18 Jan, 2023
Larissa Tiffany Pommeraud 48,643 0 09 Mar, 2026
Laura Lionetti Barton Chief Business Officer 0 7,500 16 Jun, 2022
Christopher Emlyn Jones Chief Financial Officer 1,997 0 17 Mar, 2022

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
08 Mar, 2026 Larissa Tiffany Pommeraud Common Stock A 6,803 $0.00 48,643 D A
06 Feb, 2026 Todd E Siegel Common Stock A 7,937 $0.00 114,902 D A
06 Feb, 2026 Larissa Tiffany Pommeraud Common Stock A 5,291 $0.00 41,840 D A
06 Jan, 2026 Todd E Siegel Common Stock A 7,653 $0.00 106,965 D A
06 Jan, 2026 Larissa Tiffany Pommeraud Common Stock A 10,204 $0.00 36,549 D A
05 Dec, 2025 Todd E Siegel Common Stock A 7,282 $0.00 99,312 D A
05 Dec, 2025 Jon D Sawyer Common Stock A 4,854 $0.00 79,580 D A
05 Dec, 2025 Larissa Tiffany Pommeraud Common Stock A 4,854 $0.00 26,345 D A
02 Dec, 2025 Jon D Sawyer Restricted Stock Unit (RSU) A 20,000 $0.00 20,000 D A
02 Dec, 2025 Todd E Siegel Restricted Stock Unit (RSU) A 20,000 $0.00 20,000 D A
02 Dec, 2025 Mark Gordon Restricted Stock Unit (RSU) A 25,000 $0.00 25,000 D A
02 Dec, 2025 John D Jr Longley Restricted Stock Unit (RSU) A 25,000 $0.00 25,000 D A
02 Dec, 2025 Larissa Tiffany Pommeraud Restricted Stock Unit (RSU) A 20,000 $0.00 20,000 D A
02 Dec, 2025 Mark B Justh Restricted Stock Unit (RSU) A 20,000 $0.00 20,000 D A
02 Dec, 2025 Jon D Sawyer Stock Option (Right to Buy) A 30,000 $0.00 30,000 D A
02 Dec, 2025 Larissa Tiffany Pommeraud Stock Option (Right to Buy) A 30,000 $0.00 30,000 D A
02 Dec, 2025 Todd E Siegel Stock Option (Right to Buy) A 30,000 $0.00 30,000 D A
02 Dec, 2025 Mark Gordon Stock Option(Right to Buy) A 100,000 $0.00 100,000 D A
02 Dec, 2025 John D Jr Longley Stock Option(Right to Buy) A 100,000 $0.00 100,000 D A
02 Dec, 2025 Mark B Justh Stock Option (Right to Buy) A 30,000 $0.00 30,000 D A